Accordingly, day-to-day management and sales policy are the responsibility of the joint ventures themselves, in which Bicc and Siemens have the decisive role, while Corning retains responsibility for the manufacturing technology.
Par la suite, les parties ont accepte de modifier sensiblement leurs accords. La commercialisation et la gestion quotidienne sont la responsabilite des entreprises communes elles-memes, dans lesquelles BICC et Siemens jouent un role determinant, alors que la technologie de fabrication releve de la responsabilite de Corning.